Biochemical, antioxidant and sensory evaluation of Davidsonia pruriens and Davidsoina jerseyana fruit infusion

Food Chem. 2021 Apr 16:342:128349. doi: 10.1016/j.foodchem.2020.128349. Epub 2020 Oct 12.

Abstract

Davidsonia pruriens (DP) and Davidsonia jerseyana (DJ) are a gourmet bushfood with a sweet and sour taste. This study investigated the biochemical content, antioxidant activities, and sensory attributes of DP and DJ fruit infusions in comparison with commercial forest fruits (FF) infusion. Total phenolic and anthocyanin content was higher in FF infusion compared to DP or DJ fruit infusions (P < 0.05). An abundant amount of gallic acid was found in DP and DJ fruit infusions (P < 0.05). Quercetin, kaempferol-3-O-rutinoside, and peonidin-3-sambubioside was detected only in DP and DJ fruit infusions (P < 0.05). However, a high level of oxalic acid, minerals and soluble sugars were observed in FF infusions (P < 0.05). The antioxidant capacities and overall likeness score of DP or DJ infusion were comparable with the commercial FF infusion. Therefore, bioactive compounds, antioxidant activities and sensory properties suggested that DP and DJ fruit infusion have the potential to become a commercial health promoting drink.

Keywords: Antioxidant activities; Davidsonia jerseyana; Davidsonia pruriens; Minerals; Phenolics; Sensory attributes.

MeSH terms

  • Anthocyanins / analysis
  • Antioxidants / analysis*
  • Fruit / chemistry*
  • Gallic Acid / analysis
  • Kaempferols / analysis
  • Magnoliopsida / chemistry*
  • Phenols / analysis
  • Quercetin / analysis
  • Taste*

Substances

  • Anthocyanins
  • Antioxidants
  • Kaempferols
  • Phenols
  • kaempferol-3-O-rutinoside
  • Gallic Acid
  • Quercetin